baber/WOPTO huggingface dataset:
Patent GB-414425-A (GB)
Title: Process for the manufacture of new plastic materials
IPC: C08C19/16
Filed: 1933-02-09
Abstract: Vulcanized or unvulcanized rubber is treated with hydrofluoric acid until a horn-or leather-like product is obtained.  The strength of the acid is preferably above 40 per cent, and the temperature of treatment between 15 and 120 DEG  C.  In an example, pieces of smoked sheets or other rubber are placed in the vapour space above hydrofluoric acid of 60 per cent strength in a lead vessel provided with a reflux condenser.  The acid is then brought to the boiling point and after some hours the rubber has been changed to a leather- or horn-like product.  Specification 201,898, [Class 70], is referred to.
Patent GB-361208-A (GB)
Title: Improvements in or relating to covering tiles for electric cable conduits and the like
IPC: H02G9/02
Filed: 1931-02-10
Abstract: 361,208. Covering slabs and tiles for underground cables &c. PROCTER, J., 93, Halifax Road, Nelson, and SUTTON OAK BRICK CO., Ltd., Baxter's Lane, St. Helens, both in Lancashire. Feb. 10, 1931, No. 4097. [Class 87 (i).] Each tile 1 is provided with a horizontal rectangular projection 2 at one end and a corresponding recess 3 at the other. The recess and projection may be formed along the shorter; or end, edges of the tile.
Patent GB-547241-A (GB)
Title: Improvements in electric systems for the control of the temperature of a space
IPC: G05D23/275
Filed: 1941-03-27
Abstract: 547,241. Automatic control systems for heating or cooking apparatus. BRITISH THOMSONHOUSTON CO., Ltd. March 27, 1941, No. 4113. Convention date, March 30, 1940. [Class 38 (iv)] Temperature.-A thermostat 19 controlling a valve 13 to vary the supply of a temperature changing medium to a temperature-controlled space has an auxiliary heating coil the current in which varies with the setting of the valve to reduce heating in the control, and further reduction of heating is obtained by arranging that the auxiliary heating is abruptly changed when the thermostat completes an actuating circuit. As shown the series connected shading coils 23, 24 of a motor 15 are supplied from a transformer 27, the mains field 22 of the motor being connected to supply mains. The junction of the coils 23, 24 is connected to the junction of a resistance 41 and a potentiometer resistance 39 which are also in series across the transformer 27. The thermostat 19 is also connected to the said junction and the heating winding 36 is connected across a portion of the potentiometer which is adjusted by the motor simultaneously with the valve. Fixed thermostat contacts 20, 21 are arranged selectively to short-circuit through limit switches not only the shading coils 23 or 24 according as temperature is low or high but at the same time to eliminate or double the potential applied to the heating' winding as a result of the connections described. A resistance may be connected between the potentiometer and the common junction referred to. Two opposed shaded pole motors may be similarly arranged for control. The invention is applicable to heating, cooking and air conditioning systems.
Patent GB-438588-A (GB)
Title: Improvements in crepe threads and fabrics and the manufacture thereof
Filed: 1934-02-13
Abstract: 438,588. Crepe threads. BRITISH CELANESE, Ltd., and DREYFUS, H., 22, Hanover Square, London, FINLAYSON, D., and STAFFORD, C. E., c /o British Celanese, Ltd., Spondon, near Derby. Feb. 13, 1934, No. 4190. [Class 120 (iii)] CrÛpe threads are produced by twisting yarns comprising organic derivatives of cellulose that have been stretched beyond their elastic limit in the presence of a hot aqueous medium. The yarns may be stretched while subjected to the action of hot water or steam by the methods described in Specifications 438,584, 438,585, 438,586, and 438,587, [all in Group IV], and may be formed of cellulose derivatives of high viscosity, such as described in Specification 207,562, [Class 2 (ii)], and may be treated to reduce their lustre, and may be saponified. The stretched yarn is twisted by any suitable apparatus, such as the deliverytwisting apparatus described in Specification 304,806, [Class 120 (ii)].
Patent GB-726663-A (GB)
Title: Improvements in or relating to gravity davits
Inventor: MOORE WALTER GORDON
IPC: B63B23/04
Filed: 1952-02-19
Abstract: 726,663. Boats davits. MAREPA TRUST, Ltd. Aug. 6, 1952 [Feb. 19, 1952], No. 4331/52. Addition to 688,495. Class 115. In a gravity davit of the type in which the arm is supported from a fixed stand by two pivoted links, the pivots on the stand 15, 18 are spaced apart a distance equal to or less than the combined lengths of the links 13, 14. A stop 20 prevents the link 13 going above the line of the fixed pivots and stop 22 provided with tapered spigots limits the inboard movement of the links.
Patent GB-983481-A (GB)
Title: Improvements in electrical reactors
IPC: H01F27/33
Filed: 1964-02-03
Abstract: 983,481. Inductors. GENERAL ELECTRIC CO. Feb. 3, 1964 [Feb. 27, 1963 (3)], No. 4421/64. Heading H1T. An E.H.T. shunt reactor, having no magnetic core inside its winding(s), has at least one winding 4, 5 (Fig. 1) or 1, I<SP>1</SP> (Fig. 6) (or at least one winding per phase) with a yoke member 2 or yoke members 13, 14 extending across the end faces of the winding(s) and laminated edgewise to the winding faces. Instead of the top yoke and winding ends being connected to the E.H.T. line with the top yoke acting as an electrostatic screen as shown in Fig 6, the E.H.T. line may be connected to the midpoints of the coils and the yokes earthed (Fig. 4, not shown). In this latter arrangement or in a, similarly connected arrangement having a single winding column a conductive electrostatic shield member 8 slit, or of strip form, may separate the coils at the mid-point connection. The yoke members 13, 14 are held apart against magnetic forces by a column(s) of non-magnetic or para-magnetic material 3 which may be formed from concentric glass or porcelain cylinders or may be conductive. The yoke members may be clamped by insulating the straps 17 and the whole may be mounted on a resilient support 16 to cut down core vibration. Magnetic forces on the outer laminations may be transmitted to columns 3 via welded-on beams 9. Alternatively a supplementary C- shaped magnetic member may be used. Corona preventing shields may be provided.
Patent GB-463097-A (GB)
Title: Improvements in and relating to induction furnaces
IPC: H05B6/06
Filed: 1936-02-13
Abstract: 463,097. Supply systems for highfrequency apparatus; converting. AKT.- GES. BROWN, BOVERI, & CIE. Feb. 13, 1936, No. 4437. Convention date, Feb. 13, 1935. [Classes 38 (ii) and 38 (iv)] A high frequency induction furnace is supplied from a D.C. source through electric discharge current converters having extinguishing grids of the type described in Specification 430,915, [Group XL], by which the anode currents are started and stopped at intervals depending upon the frequency of the resonant furnace circuit the capacity of which is constant, the frequency being dependent upon the state of the furnace charge. Current is supplied from the D.C. source u to the cathode m and the anodes b of an inverter, the cathodes being also connected to the middle of the primary of a transformer f. The secondary of this transformer is in the resonant circuit including the induction furnace winding g and the condenser i. The inverter is ignited and extinguished in dependence upon the resonant circuit by grids c connected to a high frequency machine o for starting and later, by a coil r coupled with the furnace winding when the machine o is disconnected by a switch s. The inverter thus energizes the furnace through the transformer f at a frequency which varies with variations of the natural frequency of the resonant circuit. Ignition electrodes k may be provided. In one modification, the grid voltage is associated with the resonant circuit through an additional winding on the transformer f, and in a further modification through a resistance across the condenser i. Reference has been directed by the Comptroller to Specification 402,791.
Patent GB-852698-A (GB)
Title: Improvements in and relating to magnifying devices
IPC: G02B27/02
Filed: 1958-02-12
Abstract: 852,698. Optical magnifying devices. KLEIN, P.H. Feb. 12, 1958 [Feb. 15, 1957], No. 4614/58. Class 97(1) The device comprises a semi-cylindrical lens 1 integral with a transparent plate 2. The axis of lens 1 coinciding with the underside of plate 2. The underside of lens 1 may be slightly concave at 3 to prevent scratching of the surface as the device is moved across a paper.
Patent GB-1007790-A (GB)
Title: Esters of cyanic acid
IPC: C09D175/12
Filed: 1964-02-04
Abstract: The invention comprises esters of cyanic acid having the formula <FORM:1007790/C2/1> in which R represents an alkyl radical containing an electron-attracting substituent, an aryl radical, a substituted aryl radical which does not contain sterically hindered substituents in both ortho positions, or a heterocyclic radical and x is 1-6. They may be prepared by reacting a compound of formula <FORM:1007790/C2/2> with a cyanogen halide at a temperature from -30 DEG  to +65 DEG  C. in a solvent in the presence of less than one equivalent of a base, based on the cyanogen halide.  R may be, for example, a phenyl radical substituted by an alkyl group or by one or more dialkylamino, acylamino, arylamino, halogeno, nitro, sulphonic acid, sulphonic acid ester, sulphonamide, free or esterified, carboxylic, carboxylic amide, alkoxy, phenoxy, acyloxy, acyl, aldehyde, sulphono, thiocyanate isothiocyanate, alkylmercapto, arylmercapto, acylmercapto or cyano radicals, substituted or unsubstituted a - or b -naphthyl, bisnaphthyl, phenanthryl or anthraquinyl radicals, quinonyl, pyrazolyl, 3-pyridyl, benztriazolyl, carbazolyl, benzthiazolyl or benzimidazolyl radicals; or an alkyl group substituted by a halogen atom, an acyl, carboxylic, esterified carboxylic, sulphonic acid, sulphonic acid ester, nitro, cyano or acetylenic radical.  Specification 877,840 are referred to.
Patent GB-546724-A (GB)
Title: Improvements relating to wharve-driven flyer spindles
IPC: D01H7/20
Filed: 1941-04-10
Abstract: 546,724. Wharve - driven flyers ; lubricating. FRASER & SONS, Ltd., D., and FRASER, G. S. April 10, 1941, No. 4785. [Class 120 (ii)] [Also in Group XXXIV] In a suspended flyer carried by a vertical hollow spindle journalled in upper and lower antifriction bearings and driven by a hollow wharve surrounding the spindle housing and having a lubricant sump within its base, a stationary segmental member is located within the sump and presents an arcuate surface mating with a cylindrical surface of the wall thereof and forming therewith a lubricant trap passage along which lubricant is swept by the rotating surface of the sump, a duct communicating with the passage and conveying the lubricant to the upper bearing. As shown the segmental member 8 is carried by the spindle housing 4 and depends into the sump 7, the outer arcuate surface 9 mating with part of the outer wall 10 of the sump; the rotating sump sweeps oil into the passage 11 which communicates by a port 12 with the duct 13 formed in the housing 4 and leading to the underside (or the upper side) of the upper bearing 6 and oil from this bearing drains through the space 15, between the bore of the housing 4 and a tubular distance piece 16, into the lower bearing 5 and back into the sump 7. Valve or other means may be provided to regulate the flow of oil up the duct 13. The sump is formed by a boss 19 secured to the spindle 1 and wharve 3 and a skirted nut 23 secured to the upper end of the spindle has a conical periphery 23a which throws any oil downwards and minimises leakage. In a modification the sump is formed in the base of the wharve and the segmental member mates with the internal wall of the sump. Specifications 292,034, [Class 12 (iii)] and 521,934 are referred to.
Patent GB-608150-A (GB)
Title: Improvements in or relating to cementitious planks and methods of constructing the same
IPC: E04C3/22
Filed: 1946-02-15
Abstract: 608,150. Roofs; floors; beams. HEYDEN, B. A. V. Feb. 15, 1946, No. 4793. [Class 20(iv)] A building slab is made by assembling a number of light porous blocks 20, Fig. 1, which may be made of cinder concrete and are provided with channels 25 in one face and with through passages 22, 24. The blocks are positioned with the channels in alignment and, to ensure good contact between the abutting faces, such faces may be ground before assembly. The blocks are then clamped by plates 43, Fig. 10, and tie rods 45 and reinforcing rods 50 are inserted longitudinally in the channels. Ribs are provided transversely in the channels and the rods have rings 51 whereby they are spaced somewhat from the sides and bottom of the channels. Cement 52 is -now deposited in the channels from the travelling hopper 53 and may be cured by steam admitted through a pipe 62. After the cement is set the plates 43 and rods 45 are removed whereby the rods 50 become tensioned and the blocks remain under compression. The slabs are now inserted and may be placed side by side to form a roof or a floor. As shown in Fig. 13 the floor may be given an arched form by the jack arrangement 65 shown or such an arrangement may be used to correct any sag. Small inserts 70, Fig. 15, may be inserted between the adjacent blocks in the gaps caused by the curvature.
Patent GB-1386271-A (GB)
Title: Feeding carding or like machines
IPC: D01G23/04
Filed: 1972-02-02
Abstract: 1386271 Feeding fibres H HERGETH [trading as HERGETH KG MASCHINENFABRIK UND APPARATEBAU 2 Feb 1972 [26 Feb 1971] 4797/72 Heading DIN [Also in Division G3] A fibre feed arrangement for a carding machine comprises an inlet chute 12 having a first monitoring device 17 maintaining a predetermined level of material in the chute (e.g. by control of conveyor 11) and a conveyor means 18 feeding a layer of fibres from the chute 12 to a driven supply roller and the carding machine. A second monitoring device 25 senses the layer thickness of the material being delivered to the carding machine and regulates the operation of the conveyor means 18 to control the material supplied to the carding machine. The second monitoring device can be mechanical or electrical and may control the speed of supply roller electronically or by adjustment of a belt trained around tapered driving rollers. The first monitoring device 17 may be an ultrasonic indicator.
Patent GB-690898-A (GB)
Title: Improvements in or relating to reinforced bricks for basic furnace lining
Inventor: BROOKE FREDERICK HOWARD
IPC: B28B23/00
Filed: 1951-02-28
Abstract: 690,898. Furnace bricks. CLEVELAND MAGNESITE & REFRACTORY CO., Ltd. Jan. 16, 1952 [Feb. 28, 1951], No. 4806/51. Class 51(ii) A reinforced brick for basic furnaces comprises a tube of metallic fluxing material shaped to the external form of the required cross-section of the brick to form a jacket totally enclosing the sides of the brick, and at least one partition of sheet metallic fluxing material secured to the wall of the tube and extending substantially across the crosssection of the brick. The brick 1 (Fig. 1) comprises a tube 2 filled with a basic brick mixture 6 a V-shaped partition 3 being secured. by rivets, screws, welding or any other means to the wall of the tube. An opening 7 may be provided for attachment to a hanger or the like as required for roof construction. The cross-section of the brick may be triangular, rectangular, square or polygonal and in one embodiment showing a rectangular cross-section the partition is of U- shape whilst in a further embodiment, Fig. 5, a square cross-sectioned brick 9 has the tube 10 and partition 12 formed integrally with rivets 15 securing the partition to the tube wall. The free end of the partition is notched and bent as at 16. The partition may be of openwork character e.g. expanded, perforated or woven. In the manufacture of the bricks a number of filled tubes may be placed simultaneously in a hydraulic press for compression of the filling. If the metal of the tubes is not stiff enough to resist distortion under pressure the tubes may be either contained in rigid moulds or bound together by wire &c. during such compression.
Patent GB-106261-A (GB)
Title: Improvements in or relating to Jig Saw Puzzles.
Inventor: TEBBITT REGINALD
IPC: A63F9/10
Filed: 1917-04-04
Abstract: 106,261. Tebbitt, R. April 4, 1917. Puzzles.-A background of wood, millboard, &c. on which the parts of a jig-saw puzzle are pieced together is provided with one or more fixed pieces constituting a part or parts of the puzzle so as to support the completed puzzle when the board is raised into an approximately vertical position. As shown, a .single piece b is fixed by glue, pins, nails, &c. at or near the foot of the board a. A hinged strut c or folding support is provided. The board may accommodate two or more puzzles.
Patent GB-851944-A (GB)
Title: A power driven steerable wheel assembly
IPC: B60K17/34
Filed: 1958-02-14
Abstract: 851,944. Driving steering-wheels of motor vehicles. PITTSBURGH CONSOLIDATION COAL CO. Feb. 14, 1958 [Feb. 26, 1957], No. 4879/58. Classes 79(2), 79(3), 79(4) and 79(5). Power driven steerable wheel assemblies 58 Fig. 5 are attached to the sides of a vehicle frame 46 by a bracket 50 having a pivot 84 for the spindle carrier 98 and having an inwardly open circular recess 74 in which the differential drive unit 32 is located. The bracket 50 has vertical flanges 68 Fig. 6 for attachment by bolts 72 to corresponding flanged supports 52 on the vehicle frame 46. The differential 32 is attached in the recess 74, outside the frame 46, by bolts 172 and is held against rotation by pins 174, the bracket 46 and support 52 being cut away at 88, 90 for the longitudinal power input shaft receiving portion 150. The frame 46 and bracket wall 66 are cut away as at 86 for the differential output shafts 168, 170 one of which is coupled by a shaft 42 Fig. 1 to the wheel on the opposite side. The other output shaft 170 is coupled by universal joint 60 to a small driving pinion 62 carried on bearings 134, 136 in a spindle bracket cover 94 and engaging a large pinion 64 on an inwardly extending wheel hub 126 which runs on bearings 128, on the spindle carrier 98. In one application the wheel assemblies are attached to the sides of a mine haulage vehicle having an electric motor 14 Fig. 2 mounted longitudinally on one side and coupled by a shaft 18 to a change speed gear 16 disposed on one side between the wheels and having a pair of forwardly and rearwardly extending output shafts 28, 30 driven from a differential 26 and coupled to the differentials 32 at each axle. The differentials 32 Fig. 4 are interchangeable with shaft couplings 44 so that they be attached on alternative sides of the vehicle and have cylindrical side walls 142, 144 of the same size so that they may be attached to the brackets 50 on either side and may be turned over to reverse the drive. A power take-off shaft 20 extends rearwardly from the gear box 16 and is coupled through a clutch 24 to a conveyor drive mechanism 22. In a modification (not shown) the brackets 50 may be attached to opposite ends of an equaliser axle with a central pivotal mounting. The ends of the axle are the same shape as the frame supports 52 so that the wheel assemblies 38, differentials 32 or shaft couplings 44 are interchangeable.
Patent GB-583492-A (GB)
Title: Iron-concrete beam
IPC: E04C3/44
Filed: 1944-03-16
Abstract: 583,492. Reinforced concrete beams. HAGGBOM, I. March 16, 1944, No. 4941. [Class 20 (iv)] In reinforced concrete beam structures comprising one or more longitudinal beams l, k of varying cross-sectional height, the structure is compressed by longitudinal tie-rods h placed outside of the beam or beams and anchored to transverse members, attached to the beam or beams at its or their ends g, f or to points nearer the centre of the span. The tie-rods are provided with tensioning devices such as screws, jacks or turnbuckles. As shown in Fig. 1, the tie-rods may carry weights or spring loads m, n. The tie-rods may be embedded in concrete, which is poured after they are tensioned.
Patent GB-192932-A (GB)
Title: Improvements in or relating to means or apparatus for the generation of electricity
IPC: F03G3/00
Filed: 1922-02-20
Abstract: 192,932. Hewer, A., and Sharples, A. A. Feb. 20, 1922. Dynamos, driving.- A dynamo a, Fig. 2, is driven by a weight q through a train of gearing and ropes e, the weight being supported in the loop of a rope p wound on two drums o. The weight may be raised by a handle, means being provided to disengage the drums from the toothed gearing, or it may be raised by mechanical means. In the method shown, a plunger t moving in a cylinder s is connected through gearing u to a rope v, the free end of which is attached to the weight q. The plunger is actuated by the ex. pansion of gas introduced in liquid form from the cylinder w and heated in any suitable manner. On completion of the working stroke cooling water may be circulated through the pipes x to reduce the pressure.
Patent GB-703705-A (GB)
Title: Improvements in or relating to radio aerials
Inventor: JEFFERY GLYNN BENNETT
IPC: H01Q19/28
Filed: 1951-03-01
Abstract: 703,705. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 6, 1952 [March 1, 1951], No. 4950/51. Class 40 (7) An aerial system comprises a single length of conductive rod or tube shaped to form a folded unipole with one limb extended to afford an effective earth. The earth extension may be further continued to provide one or more directors and/or reflectors. A metal tube 1, half an inch in diameter, is bent into inverted U shape having limbs 2 and 3 and one limb extended to provide a horizontal portion 5 providing an effective earth. The aerial is supported on top of a mast 6 by means secured to the portion 5. A reflector 7 coplanar with the limbs 2 and 3 may be formed by a further extension 7 of the tube and the tube may be closed by a plug 8. A concentric feeder 9, 10 may pass up the mast into the interior of the tube and be led to the open end of limb 2. The outer conductor 9 is there connected to the end of limb 3 as shown and the inner conductor 10 to the end of limb 2. A protective insulating member 12 may be moulded in position over the connections. Fig. 2 shows how a single length of rod or tube can be shaped to form a unipole with a director and a reflector and Fig. 3 shows an arrangement with three reflectors, Figs. 2 and 3 (not shown). It is stated that the feeder may be led straight across from the portion 5 to the end of limb 2 instead of passing along the limbs of the unipole. Specification 438,506 is referred to.
Patent GB-1442087-A (GB)
Title: Composite printing and relief plates
IPC: B41M5/24
Filed: 1974-02-04
Abstract: 1442087 Printing plates LASER GRAPHIC SYSTEMS CORP 4 Feb 1974 [27 Feb 1973] 04967/74 Heading B6C [Also in Divisions H4 and G2] A composite plate, for making a printing plate or other surface in relief, comprises a writing layer capable of absorbing a coherent, first radiation of a first wavelength and reflecting a coherent, second radiation of a second wavelength, a substrate made of a plastics material that is capable of absorbing the second radiation and is unaffected by the first radiation, and a barrier layer capable of absorbing the second radiation and located intermediate the substrate and the writing layer to prevent any substance, which exudes from the substrate on exposure of the substrate to the second radiation, from contacting the writing layer, whereby the profile of the writing layer formed by exposure to the first radiation is maintained. The writing layer may be a metallic film, e.g. of copper 200-2000 Š thick. The barrier layer may be au acrylic polymer, e.g. methyl methacrylate, methyl/n-butyl methacrylate copolymer or ethyl methacrylate resin, the substrate may be cellulose nitrate.